Advanced search  
Pages: [1] 2 3 ... 10
 1 
 on: May 26, 2017, 02:10:01 PM 
Started by Ric Gillespie - Last post by Ric Gillespie
Jeff Glickman has completed his scaling of the photo.  Report attached. Dr. Jantz will now be able to determine the distance in inches between any two points on AE's arm.
In his report, Jeff refers to the can as an "oil can" but he is, of course, talking about the Mobilubricant can.

Ric

 2 
 on: May 26, 2017, 02:00:14 PM 
Started by Ric Gillespie - Last post by Matt Revington
On the Luke field inventory

"51   1   "   Carrying case with key containing 14 folders" "

As Jerry noted in an earlier post the ribbon attached to the handle  of the case visible in some photos likely was there to hold the key, so it was brought on the first attempt, since AE had Manning and Noonan on that flight it would seem likely that it didn't hold maps but maybe other necessary documents and perhaps manuals for the electra and other onboard equipment.

 3 
 on: May 21, 2017, 03:41:23 PM 
Started by Clarence Carlson - Last post by Clarence Carlson
This research started after reading an older forum topic that speculated about ham operators being a potential source of radio signals on Amelia's radio frequencies during the search. I obtained a 1937 copy of The Radio Amateurs Handbook-The Standard Manual of Amateur Radio Communication and reviewed the April, May and June, 1937 issues of QST, a monthly publication from the American Radio Relay League. This is a subscribed service so links won't work. I also reviewed a letter from the TIGHAR website written by Yau Fai Lum, the radio operator on Howland Island during the search, Lum Letter and an oral history project which interviewed Victor BS Kim, the radio operator on Jarvis during the same period. Kim

Kim's interview is helpful in defining what equipment was available. He was chosen because he was a licensed amateur who already had equipment. Specifically he says: "Because the requirement was that I have equipment. That's why the want us amateur operators [on the expedition] because we have [our own] equipment". When asked about his method of operating he answered: "Yeah all Morse code. There’s no voice, voice is high class, costs a lot of money. You need extra equipment for that. Morse code is the simplest, cheapest”. And he says this: "I had to assemble it when I got there. Assemble it and get on the air the same day. See? On the receiver I had to buy a ready made one”. Since he specifically notes that his receiver is "ready made" he seems to be indicating that, like most amateur operators of the day, he built his own transmitter. In summary he refers to a "simple" morse (what is usually called a "CW") transmitter and purchased receiver. He also emphasized that radio time was limited, mostly based on battery power needs. “Only for that report I send in every night. That’s all. Outside of that I cannot talk to outside world…I cannot talk too long on the radio because I have a small battery and the generator it just lasts only for so many minutes. Thats all, and we have to recharge, you see, so we cannot do any talking". An aside: a lot of Morse operators refer to working other stations as "talking". I do it all the time and I pretty much use CW (Morse) exclusively.

Lum also had some specific recollections about his equipment. “I had a SW3 radio receiver and a home built with a 807 in the final" and "“My SW3 receiver only had a few coils in the ham bands and two that I wound to receive the Coast Guard frequency on 31 meters and a broadcast coil to recieve KGMB in Honolulu.” Here is echoing what Kim has said about a purchased receiver and simple home built equipment. Incidently the coils used in this receiver, made specifically for ham use, would not allow him to listen as low as 3105 kHz on his own equipment.

I will also note that all of the transmitter construction articles in both the 1937 Handbook and those issues of QST that were reviewed spoke only of crystal control. It was possible to build transmitters using other means of frequency control but it was not at all the norm and would have been inappropriate for portable/island use. It was difficult to achieve stability with such devices and the inexpensive receivers in use (such as the SW3) were not frequency calibrated to any great extent. It would be difficult to know with any certainty what frequency that one was using.

My summary would be that the radio equipment consisted of simple, low power crystal controlled transmitters and simple radio receivers, all operating in the code bands. Of course one caveat is that information for the equipment on Baker is, to me, unknown. The limited power resources available preclude much in the way of extraneous use. The notion that these transmitters could have, in any way, been used to transmit outside of the amateur bands, i.e. to interfere with radio traffic on 3105 kHz is so unlikely as to be impossible. I hope this information helps in understanding the "radio situation" on the islands.

 








 4 
 on: May 19, 2017, 08:52:52 AM 
Started by Gary Vance - Last post by Leon R White
I may get in trouble, but I have to ask.  There appears to be an object in the 2014 picture in the water.  It isn't her plane, or a plane, but . . . can anyone else see it?  Does anyone know what it is? 

it is off to the left of the greenish water very near the top of the photo just left of center. (it may even run off the edge of the photo.)  It is gray and angular.  Enlarging the photo reveals more detail.  Apologies to the camel club members, but I've looked at it repeatedly - it always looks the same: gray with hard edges and perhaps a tiny piece sticking out of the water.  I know nothing about fishing vessels but assume it is something like that perhaps.

Leon

 5 
 on: May 18, 2017, 04:48:50 PM 
Started by Gary Vance - Last post by Andrew M McKenna
Bunch of us hiked past this object in 2015.  I don't remember anything in particular of notice, but there was some debris up there.  Often there are bundles of fishing floats all caught in in part of a net, or other raft like objects that have a lot of white floats on them.

Maybe I can find a photo from 2015.

amck

 6 
 on: May 18, 2017, 03:16:50 PM 
Started by Gary Vance - Last post by Gary Vance
I hope someone will make a trek in the upcoming June visit to go see what this thing is!

 7 
 on: May 17, 2017, 02:08:38 PM 
Started by Ted G Campbell - Last post by Jerry Germann
The search for a can identical to the one Earhart holds is looking better each passing day. I am corresponding with a gentleman who has had several in his possession, and currently has one....stay tuned.

 8 
 on: May 11, 2017, 02:39:43 PM 
Started by Ted G Campbell - Last post by Jerry Germann
I certainly hope not Ted, ...I am making some progress ( albeit minuscule) regarding an item that may help us determine what Amelia's arm and radius length on her right side may have been. It could at least help us determine if Amelia's radius length is close or not to that of the castaway's radius bone found. The old gas can forum people are looking and they number over 18,000 members, so if that grease pail is out there, they may help us find it. We may have what we need with Jeff's purchase of the Mobil NO 2 grease pail, but having a can labeled and looking exactly like the one Amelia holds would help avoid any problems should the measurements be different by a small amount, ... in my judgement looking at the can she holds and knowing what some other known cans measure, I don't think they could be much different if any.

 9 
 on: May 10, 2017, 10:17:17 PM 
Started by Ted G Campbell - Last post by Ted G Campbell
What is going on?  No forum activity for the past 4 days, are we done?

Ted Campbell

 10 
 on: May 07, 2017, 08:55:25 PM 
Started by Ric Gillespie - Last post by Ted G Campbell
To all the wizards out there:  Is it possible to determine a length ratio between the can length and the length of the “M” in "Mobil" in the photo?  Can we then compare the length ratio between the two “arm bones” in the records with the forgoing can ratio in order to see if there is a correlation?

Ted Campbell

Pages: [1] 2 3 ... 10
Copyright 2017 by TIGHAR, a non-profit foundation. No portion of the TIGHAR Website may be reproduced by xerographic, photographic, digital or any other means for any purpose. No portion of the TIGHAR Website may be stored in a retrieval system, copied, transmitted or transferred in any form or by any means, whether electronic, mechanical, digital, photographic, magnetic or otherwise, for any purpose without the express, written permission of TIGHAR. All rights reserved.

Contact us at: info@tighar.org • Phone: 610-467-1937 • Membership formwebmaster@tighar.org

Powered by MySQL SMF 2.0.13 | SMF © 2016, Simple Machines Powered by PHP